Teledyne 4020 - Hydrocarbon analyzer - Manual (Page 10)

Model 4020
Teledyne Analytical Instruments x
4.6.16.2 User Select 59
4.6.16.3 Default (By Function) 61
4.6.16.4 Observing the gas Stream Concentrations 62
4.6.17 Standby 63
4.7 Advanced User Functions 63
4.7.1 Zero Offset Adjustment 64
4.7.2 Background Gas Selection 65
Maintenance & Troubleshooting ................................................ 67
5.1 Measuring Circuit Electrical Checks 68
5.1.1 Loss of Zero Control 68
5.1.2 Anode Voltage Check 69
5.1.3 Electronic Stability 70
5.1.4 Printed Circuit Board Replacement 70
5.1.5 Collector Cable 70
5.2 Temperature Control Electronic Check 71
5.3 Ignition and/or Flame Guard Circuit Checks 72
5.4 Sampling System 73
5.5 Printed Circuit Board Descriptions 73
5.5.1 Flame Guard and Anode Power Supply PCB 73
5.5.3 Proportional Temperature Controller PCB 74
5.5.4 Electrometer-Amplifier PCB 76
Appendix ...................................................................................... 79
Specifications 79
Application Data 80
Recommended Spare Parts List 81
Drawing List 82